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SWIMMING POOL COVERS

May 29, 2012 - 6:40pm

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You can significantly reduce swimming pool heating costs by using a pool cover. On the following

pages, see the tables showing the costs of heating pools with and without pool covers in different

U.S. cities:

 Estimating Heat Pump Swimming Pool Heater Costs and Savings

 Estimating Swimming Pool Gas Heating Costs and Savings

Use of a pool cover also can help reduce the size of a solar pool heating system, which can

save money.

HOW THEY WORK

Swimming pools lose energy in a variety of ways, but evaporation is by far the largest source of

energy loss. Evaporating water requires tremendous amounts of energy. It only takes 1 Btu

(British thermal unit) to raise 1 pound of water 1 degree, but each pound of 80ºF water that

evaporates takes a whopping 1,048 Btu of heat out of the pool.

Summary of content (4 pages)

PAGE 1
Home » Swimming Pool Covers SWIMMING POOL COVERS May 29, 2012 - 6:40pm ADDTHIS Share on email You can significantly reduce swimming pool heating costs by using a pool cover. On the following pages, see the tables showing the costs of heating pools with and without pool covers in different U.S.
PAGE 2
The evaporation rate from an outdoor pool varies depending on the pool's temperature, air temperature and humidity, and the wind speed at the pool surface. The higher the pool temperature and wind speed and the lower the humidity, the greater the evaporation rate. In windy areas, you can add a windbreak—trees, shrubs, or a fence—to reduce evaporation. The windbreak needs to be high enough and close enough to the pool that it doesn't create turbulence over the pool, which will increase evaporation.
PAGE 3
One of the lowest cost covers made specifically for swimming pools is the bubble (or solar) cover. Bubble covers are similar to bubble packing material except they use a thicker grade of plastic and have UV inhibitors. Vinyl covers consist of a heavier material and have a longer life expectancy than bubble covers. Insulated vinyl covers are also available with a thin layer of flexible insulation sandwiched between two layers of vinyl.
PAGE 4
the cover. The type of cover and the climate affects this balance. In dry and/or windy conditions, the evaporation rate of the pool increases. Therefore, it is generally beneficial to have a transparent or bubble cover on during daylight hours. In warm, humid conditions the evaporation rate decreases. In this case, it may be more beneficial to leave the cover off during the daytime.